21606 – java.net.URI fails to decode lowercase hex codes

URIs may contain special hexadecimal byte codes in the format %HH where H is a
hexadecimal digit, either upper or lowercase. (RFC 2396 2.4.1)
When given a string containing lowercase hex codes such as %2c, the URI
constructor throws a URISyntaxException.
Steps to reproduce:
1. new URI("/a%2cb")
Actual results:
A URISyntaxException is thrown.
Expected results:
A happy, usable URI object. This works as expected on Sun's JDK 1.5.0.
Additional information:
GCC 4.0 compiled from source release on an Ubuntu Linux 5.04 "Hoary" system.

Created attachment 8899 [details] 
Test case
$ javac UriBugDemo.java && java UriBugDemo
ok: /a,b
ok: /a%2C,b
ok: /a%2c,b
$ gcj-4.0 -o UriBugDemo --main=UriBugDemo UriBugDemo.java && ./UriBugDemo
ok: /a,b
ok: /a%2C,b
broke! /a%2c,b

I'm testing a patch.

Subject: Bug 21606
CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	tromey@gcc.gnu.org	2005年05月16日 20:27:48
Modified files:
	libjava : ChangeLog 
	libjava/java/net: URI.java 
Log message:
	PR libgcj/21606:
	* java/net/URI.java (unquote): Handle lower-case letters as well.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/ChangeLog.diff?cvsroot=gcc&r1=1.3615&r2=1.3616
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/net/URI.java.diff?cvsroot=gcc&r1=1.10&r2=1.11

Subject: Bug 21606
CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-4_0-branch
Changes by:	tromey@gcc.gnu.org	2005年05月16日 20:35:23
Modified files:
	libjava : ChangeLog 
	libjava/java/net: URI.java 
Log message:
	PR libgcj/21606:
	* java/net/URI.java (unquote): Handle lower-case letters as well.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.3391267&r2=1.3391268
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/net/URI.java.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.9&r2=1.9.6.1

I've checked in the fix.
Thanks for the simple test case.